Snap-hook.



J. R. REYBURN'& C. D. SAGENDORF,

SNAP HOOK.

APPLICAT ON FILED JULY 6. 1911.

1,296,21'2. Patanted Mar. 4,1919.

UNITED STATES. PATENT ornron.

' JOHN R. REYIBURN, 0F FAIRFIELD, AND CLAUDE D.- SAGENDORF, or BRIDGEPORT,

CONNECTICUT,

ASSIGNORS TO AMERICAN CHAIN COMPANY, INCORPORATED, OF

BRIDGEPORT, CONNECTICUT, A. CORPORATION OF NEW YORK.

SNAP-HO 0K.

Specification of Letters Patent.

Application filed July 6, 1917. Serial No. 178,907.

To all whom it may concern: 7

Be it known that We, JOHN R. REYBURN, of Fairfield, Fairfield county, Connecticut, and CLAUDE D. SAGENDORF, of Bridgeport,

Fairfield county, Connecticut, have made a.

certain new and useful Invention Relating to Snap-Hooks, of which the following is a specification, taken in' connection with the accompanying drawing, which forms part of the specification. I v

This invention relates especially to sheet metal snap hooks in which the hook member is formed of sheet metal bent up into channeled form in which the substantially parallel side plates are supported by the connecting and strengthening back web at such distance apart as toaccommodate the flat spring strip used as the snap. These side plates may be given any desired hook form and have their ends spaced apart and more or less closed by alining closing tips serving to'hold the spring snap in place when in its holding position. The spring snap is also preferably provided with a transversely extending retaining spring end extending across the receiving hook recess in which the 'ring or other member to be held is inserted and this spring end preferably normally extends more or less into a spring slot in the back web of the hook member so as to be still more securely held in this retaining position. When relasing the snap this springend may pr'oject through the spring slot so as to open the hook and allow the withdrawal or in-- .sertion of the cooperating connecting memher or device. I

In the accompanying drawlng showlng in a somewhat'diagrammatic way illustrative embodiments of the invention,

Figure 1 is an elevation of a blank from. which the hook member may be formed.

" Fig. 2ls'hows the completed snap hook in side elevation.

' Fig. 3 is a corresponding front view, and Fig. 4;.is aback elevation thereof.

' Fig. 5 is a side elevation of another form of snap hook of this general. construction; and e V V V Fig. '6 is a front elevation thereof. These snap hooks may be cheaply and, conveniently made by stamping ,them'up from sheet steel orothersuitable'sheet metal and for ordinary snap hooks, such as are used for harness connections and similar purposes ordinary low carbon steel is a suitable material. Fig. 1 shows the contour of a blank from which a snap hook of this type may be formed, the aperture 2 leaving web portions f and a connected apertured end plate 24: from which a swivel connection may be formed, while the projections Bare given such contour as is desired to form the particular shaped hook ends required for the particular purpose intended; The dotted vertical lines indicate the way in which the side plates 1 of the-blank may be bent up around the back web 9 in which may be formed a spring slot 8 andan anchor slot 5 when the locking tongue 10 is forced inward.

As'shown in Figs. 2 and 3 this blank is'bent up into channeled form so that the two side plates 1 are substantiallyparallel andar'e connected and strongly reinforced by the ably maintained in substantial alinement by one or more suitable closing tips 7 which may be in the form of integral inturned tips bent up from these hook ends and soldered or otherwise connected, if desired, so as to i still more rigidly hold these hook ends in 'alined parallel position. '5

In this way the hook member is in the back web 9. The hooked ends 6 are preferform of a channel, the sideplates being separated by such distance as to conveniently accommodate the springsnap which may be in the form of a flat spring 13 of such width channeled hook form described. The spring snap may be further supported as by forming inwardly protrudingspring bearing projections 12 in the side plate's'las by punching or forcing theminward to produce ap preaching more or less conical or cylindrical bearing projections holding the spring'loop in substantial alinement while readily allowing its operating movement. It 'is quite desirable to "form a transversely extending retaining end 23 on the spring snap jsllbstanltie y 1 es me. th re e h re ess: .2 V

and retaining therein the ring or othencon nect1ng-, member or dev1ce-1nserted lmthe hook so th'atiit cannot twist or work down.

position.

downward. movementfiby any suitableprojections or portions on the hook member and this may be convenientlydbne-byhaviirg thespring end proj ect sufliciently back from the elosingt-ips 7 againstwhich the'spri'ng snap normally. rests so that this spring endlies within thespring slotfS andis thereby held against displacemei'it. The slot thus acts as a-gilideduring the disengaging movement of thespring snapjwhich maybe readily forced inward by th-umbpressure'upon'it so thatits retaining end may protrude through the spring slot'and allowthe coepera-tingring 27 or other'memb'er'tobe withdrawn from or inserted in the receivingjrecess 2'61 Iif'desiiedgl a swivel'ed'connection may, be PBOVldCdbIl this spring snap by twisting, the apertured'end plate M'into the transverse position indicatediin Figs. 2" and 3,, the connector yoke t'being preferably. spread apart atflthis. pointso as toleave additional room for the cooperating swivel member; A" sheet metal swivel is. shown as formed'with the heads. 14 inserted. through the. slot 8'fwh ich may then be forcedftogether into substantiallysquare shape forcing the endi'plate Q JJtogether vertically as it is shown in F-ig.,1 so that theaperture 3 isthereby crowded togetherxinto substantially square shape with rounded ends to thus permanently retain the headul tof, the swivel member. I5 in position while allowingffree rotation thereof. This swivel? action is not, however, necessary all-casesaandf asfishowrn. in Figs.. 5 and- 6' th e hook member maybe formed with rivet con- .nector. holes through which a rivet 17' may extend irfsuchzposition as to serve as abear- 'ing member for the spring snap,- 18 which may; curve around thisrivet and be formed with ananchorfend; such, as 19 coiiperating orinterlocking with a suitablev proj ection which may be -bentiup. from the. web. It 'desireelthe locking tongue: 20,;wh'ichi may be formed integral Withrthe back web, may be bentup to; be engaged bythisxlocking tongue and also preferably 'bentback against the springend: so as to still more securely hold the spring snapipro-peroperative. position in connection vnith t' heriveti and hook mean:- berfl indicatedi the. rivet:- may pass through a suitable connector link 28,,tlie

11i;vet.-heads being spnnup; or otherwise forrned orutside' orfiithis link so; as .tol'hold it 7 in. proper-3" coiiperation with the hookmem;

e-i e h rea Pr erably ea s swiveling, movement betweenathesepants; V

' 'l lhisginventiont-has been. described? in connection with a'number of illustrative embodiments, forms, proportions, sizes, arrangements-oi parts, materials and methods of construction. and were the: details of which disclosure. the invention is not of 7 course to be limited, since what is claimed as newrand what is desired to be secured by Letters Patent is set forth in the appended olaims's v n v I 1. The snap hook comprising a channeled sheet metal" hook member having similar side plates provided with hook ends. connected and held in-substantiallyparalleL pos tion' an." integral b ack web, integral alini'ngf clesingrtips formed onsaid hook ends to connect and maintaintheir ends in. substantially: parallle-l position, aspring snap of such 'widthlas to fit loosely within: the chan- 1 nel formed byfsaid side plates andhaving a plates providdjwith hook ends. connected and" held in substantially. parallel position by" an integral b'acl' '*web,; integral alihing closing: tips frmedl onsaid'h'ook ends to connect and maintain their ends substantially parallel position, spring snap. of such width! as to fitloosely within the channel formed by saidfside; plates and. having a curved bearing portion. and'a recurved' anchor end-projecting throughran anchor slot insaid back web, an; anchor locking tongue formed. on said f web and engaging said anchor end, inwardly protruding, integral springbearing portions formed'in said side plates. tor-project into and coeperate with the bearing portion, of" said spring,. snap,=.

3: 'l hesnap} hookcomprising a channeled sheetmetal hnok. member having sid'eplates providedlwith ho ok. ends Connectedl'and held in substantially parallel positioni by anzin tegral back web integral alin ing closing means formedon said h'ookaends, a spri-ng snap of such width asto fit loosely withina the channellfor ed said isideiplates' arid'havsheet metal hook member having side plates provided with hook ends connected and held in substantially parallel position by an integral back web, integral alining closing means formed on said hook ends, and a spring snap of such width as to fit loosely within the channel formed by said side plates and having an anchor end operatively connected to said hook member.

5. The snap hook comprising a channeled sheet metal hook member having side plates provided with hook ends connected and held in substantially parallel position by an integral back web, integral closing means formed on said hook ends, a spring snap of such width as to fit loosely within the channel formed by said side plates and having a portion operatively connected to said hook member, a transversely extending retaining spring end formed on said spring snap to normally extend across the receiving recess of said hook ends and project into a spring slot in the back web.

6. The channeled sheet metal snap hook member having similar side plates provided with hook ends connected and held in substantially parallel position by an integral back web, integral alining closing means formed on said hook ends to maintain their ends in substantially parallel position, an anchor locking tongue adapted to engage a spring, such inwardly protruding integral spring bearing projections formed in said plates to project into and cooperate with the bearingportion of the spring snap, said book member being formed with an integral connecting yoke and apertured end plate adapted to cooperate with a swivel member.

7 The channeled sheet metal snap hook member having side plates provided with hook ends connected by an integral back web, inwardly protruding integral spring bearing projections formed in said side plates to project into and cooperate with the bearing portion of the spring snap.

8. The channeled sheet metal snap hook member having side plates provided with hook ends connected by an integral back web, said hook member being formed with an integral connecting yoke and apertured 60 end plate adapted to cooperate with a swivel member.

JOHN R. REYBURN. CLAUDE n. SAGENDORF.

Witnesses:

WALTER F. FITZGERALD, KATHERINE T. FENNESSY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G. 

